Boso IV of Périgord

Boson IV (c. 1106–1166), a son of Adalbert III, first appears in 1135 as lord of Grignols. From the early 1140s he ruled Périgord as co-ruler of his uncle Hélie Rudel, whose sons had died in the Limoges war, and alone from 1149.

By his wife Contor he had his successor Hélie VI Talleyrand, two sons who became monks and another who became an abbot; his daughter Jourdaine married Archambaud V of Comborn.